Small towns and cities are grouped together to form states. Constituent states form a country. The countries together form the world. The world is an aggregation of places and population together. Today the world is fast growing and evolving. Things today are more modern and technology-based rather than being retro. The world is huge and people love to travel and explore the world entirely so as to see several places and have a feel of their rich tradition and culture. The world population figures are also rising like anything and as such there is a need to keep the growing world population under control. Measures should also be taken so as to minimise the pollution levels in different countries across the world. Albert Einstein had remarked, “The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it. The most incomprehensible thing about the world is that it is comprehensible.”